only add go meta import tag if go.mod exists in repo root

routes/routes.go

@@ -151,6 +151,7 @@ func (d *deps) RepoIndex(w http.ResponseWriter, r *http.Request) {
 	data["commits"] = commits
 	data["desc"] = getDescription(path)
 	data["servername"] = d.c.Server.Name
+	data["gomod"] = isGoModule(gr)
 
 	if err := t.ExecuteTemplate(w, "repo", data); err != nil {
 		log.Println(err)

routes/util.go

@@ -3,8 +3,15 @@ package routes
 import (
 	"os"
 	"path/filepath"
+
+	"git.icyphox.sh/legit/git"
 )
 
+func isGoModule(gr *git.GitRepo) bool {
+	_, err := gr.FileContent("go.mod")
+	return err == nil
+}
+
 func getDescription(path string) (desc string) {
 	db, err := os.ReadFile(filepath.Join(path, "description"))
 	if err == nil {

templates/head.html

@@ -5,7 +5,7 @@
     <link rel="stylesheet" href="/static/style.css" type="text/css">
     <link rel="stylesheet" href="https://cdn.icyphox.sh/fonts/inter.css" type="text/css">
     <link rel="icon" type="image/png" size="32x32" href="/static/legit.png">
-    {{ if .servername }}
+    {{ if and .servername .gomod }}
     <meta name="go-import" content="{{ .servername}}/{{ .name }} git https://{{ .servername }}/{{ .name }}">
     {{ end }}
     <!-- other meta tags here -->